Firmware for WRT54GX ver2

Can someone tell me if there is another version of firmware that I can use on the Linksys WRT54GX ver.2 model? I have tried the offical version from Linksys ... but had many problems with this router / access point. I would like to try a different firmware version and looking for anyone who has had luck with this model...

2.00.11 Dec 21, 2005 1. Fixed a problem with PPPoE and PPTP MSS issue.
2. Fixed some typos in the User interface.
3. Fixed PPTP connection type MTU size having an
issue with NAT.
4. Fixed problem with DHCP Server on the LAN side.
5. Fixed PPTP server will not work on the LAN side using port
forwarding or DMZ.
6. Fixed in some cases where a 100Mbps connectivity went down
to 10Mbps.
7. FIxed problem with WEP key length.
8. Fixed user interface for the wireless security WEP key display.
9. Fixed user interface for the LAN settings not taking into
effect after saving settings.
10. Fixed setup wizard not saving the WEP key properly.
11. Fixed DoS log not starting properly.
12. Fixed issues using Access restrictions using MAC address or IP address
not working properly.
13. Fixed Log time not saved properly.
14. Fixed problem with some older browswer not allowing to be upgraded.
15. Fixed status page where it shows connected, even when it is disconnected.
16. Updated switch and wireless module library.
17. Changed default for PPTP/PPPoE to keep alive for USA firmware.
18. Changed the CTS protection mode to disable by default.

2.00.8 Jul 19, 2005 1. Fixed where all ports were scanned as closed, not stealth
2. DMZ LED was not turning on and off when enabled and disabled.
3. Fixed security hole were the router's web interface can be
access through
4. Fixed Static DNS does not work in DHCP and PPPoE mode.
5. Added TKIP+AES configuratioin for both PSK/Radius webpage.
6. Added Status Router page will update every 10 seconds.
7. Fixed Timezone had no effect in PPPoE, unless it was rebooted.
8. Fixed issue with associating when in a noise environment.

Is it safe to use the US firmware (filename WRT54GX_V2_USA_2.00.15.bix) on a UK router?
I have looked for a UK version but there don't seem to be any firmware updates at all for this router on the UK site.